1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ratling [72]
4 years ago
12

For a certain transverse wave, the distance between two successive crests is 1.20 m, and eight crests pass a given point along t

he direction of travel every 12.0 s. calculate the wave speed.
Physics
1 answer:
Papessa [141]4 years ago
6 0
The distance between two successive crests of the wave corresponds to the wavelength of the wave, so:
\lambda=1.20 m
8 Crests of the wave pass a given point in t=12.0 s. This means that the frequency of the wave (the number of oscillations per second) is given by
f= \frac{8}{12.0 s}=0.67 Hz

And now we can calculate the speed of the wave, which is given by the product between wavelength and frequency:
v=\lambda f = (1.20 m)(0.67 Hz)=1.79 m/s
You might be interested in
The initial kinetic energy imparted to a 0.25 kg bullet is 1066 J. The acceleration of gravity is 9.81 m/s 2 . Neglecting air re
lubasha [3.4K]

Answer:

The range of the bullet is 0.435 kilometers.

Explanation:

According to the problem, maximum height is equal to the range of the bullet. That is:

\Delta x = \Delta y

Where:

\Delta x - Range of the bullet, measured in meters.

\Delta y - Maximum height of the bullet, measured in meters.

By the Principle of Energy Conservation, gravitational potential energy reaches its maximum at the expense of the initial kinetic energy. That is to say:

K_{1} = U_{2}

Where:

K_{1} - Kinetic energy at point 1, measured in joules.

U_{1} - Gravitational potential energy at point 2, measured in joules, and:

U_{2} = m\cdot g \cdot \Delta y

Where:

m - Mass of the bullet, measured in kilograms.

g - Gravitational constant, measured in meters per square second.

The maximum height is now cleared:

K_{1} = m\cdot g \cdot \Delta y

\Delta y = \frac{K_{1}}{m\cdot g}

If K_{1} = 1066\,J, m = 0.25\,kg and g = 9.81\,\frac{m}{s^{2}}, the maximum height is now computed:

\Delta y = \frac{1066\,J}{(0.25\,kg)\cdot \left(9.807\,\frac{m}{s^{2}} \right)}

\Delta y = 434.791\,m

\Delta y = 0.435\,km

Lastly, the range of the bullet is 0.435 kilometers.

3 0
3 years ago
Describe how the earth is a "giant magnet.
Gala2k [10]
Because the core is a big ball of iron
4 0
4 years ago
What is the charge on a hypothetical ion with 35 protons and 37 electrons?
irinina [24]
Charge= Protons- electrons
Charge= 35p-37e= -2

This Ion will have a charge of -2
<span>. </span>
5 0
3 years ago
Two sources emit beams of light of wavelength 550 nm. The light from source A has an intensity of 10 μW/m2, and the light from s
alexira [117]

Answer:

<em>A) Beam B carries twice as many photons per second as beam A.</em>

Explanation:

If we have two waves with the same wavelength, then their intensity is proportional to their power, or the energy per unit time.

We also know that the amount of photon present in an electromagnetic beam is proportional to the energy of the beam, hence the amount of beam per second is proportional to the power.

With these two facts, we can say that the intensity is a measure of the amount of photon per second in an electromagnetic beam. So we can say that <em>beam B carries twice as more power than beam A, or Beam B carries twice as many photons per second as beam A.</em>

3 0
3 years ago
What enables the human eye to "see" light in the infrared range of the electromagnetic spectrum?
Phantasy [73]
A thermogram<span> enables the human eye to "see" light in the infrared range of the electromagnetic spectrum.</span>
6 0
3 years ago
Other questions:
  • Helium is considered a noble gas because it has a _blank___ valence electron shell
    7·2 answers
  • What is one characteristic of a sample of matter that indicates it is a pure substance? A) It can be separated using by a physic
    13·2 answers
  • How might you use a rope and pulley to move a wagon up a ramp?
    7·1 answer
  • A horse was grazing at the top of a small hill. The horse got thirsty and ran toward a
    14·1 answer
  • An 85-kg man plans to tow a 109 000-kg airplane along a runway by pulling horizontally on a cable attached to it. Suppose that h
    11·1 answer
  • You can describe the _______________ of an object by saying it is moving in a straight line or is curved around another object.
    10·1 answer
  • Two boats start together and race across a 62-km-wide lake and back. Boat A goes across at 62 km/h and returns at 62 km/h. Boat
    8·1 answer
  • 12<br> Hot glass looks just like<br> ________ glass.<br> •Broken<br> •cold<br> •Shiny
    13·2 answers
  • At t = 0, a car registers at 30 miles/hr. Forty seconds later, the car’s velocity is now at 50 miles/hr. Assuming constant accel
    9·1 answer
  • The diagram shows a wave traveling through a medium.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!